baber/WOPTO huggingface dataset:
Patent GB-1401600-A (GB)
Title: Composition and process for the activation of resinous bodies  for adherent metallization
IPC: C23C18/20
Filed: 1973-12-07
Abstract: 1401600 Electroless plating of resinous surfaces KOLLMORGEN CORP 7 Dec 1973 [13 Dec 1972] 56730/73 Heading C7F A resinous surface of e.g. a.b.s. or polyester is contacted with an aqueous solution of K, NaCa, Li or Cs permanganate having a molar ratio of permanganate ion to manganate ion of up to 1.2 and a pH of 4 to 13 prior to electroless plating with e.g. Cu, Au, Ag, Co or Ni. The surface may contain copper oxide or may be contacted with stannous and then Pd or Pt chlorides. The surface may be pre-treated by contacting with dimethyl formamide, dimethyl sulphoxide, N- methyl-2-pyrrolidone, ketones, halogenated hydrocarbons, sulphuric, nitric or phosphoric acids, toluene sulphonic acid or a strong amine. After contacting with the permanganate, the solution on the substrate may be neutralized with stannous ions, bisulphite ions, sugar or hydroxylamine. The permanganate solution may be rejuvenated by bubbling CO 2  therethrough, heating to 80 to 100‹C, cooling, adding calcium hydroxide or oxide, and filtering.
Patent GB-1139860-A (GB)
Title: Cyclic ethers of cardenolide digitoxosides
IPC: C07J19/00
Filed: 1967-12-14
Abstract: 1,139,860. Cyclic ethers of cardenolide digitoxosides. C. F. BOEHRINGER & SOEHNE G.m.b.H. 14 Dec., 1967 [15 Dec., 1966], No. 56828/67. Heading C2U. Novel cardenolide digitoxoside derivatives of the formula (wherein R 1  is H or alkyl; R 2  is alkyl, alkenyl or alkynyl, R 1  and R 2  together containing at most 6 carbon atoms; R 3  is CH 3 , CHO, CH 2 OH or CH 2 Oacyl; R 4  is H or OH; and R 5  and R 6  are H, OH or C 1-3  acyloxy) are prepared by reaction of the appropriate aldehydes or ketones R 1 COR 2  with the parent cardenolide digitoxosides. A CHO group R 3  in the products may be reduced to a CH 2 OH group, and this and other OH groups may be acylated. Derivatives of helveticoside, helveticosol, lanadoxin and gitoxigenin monodigitoxoside and its 16- acetate are described.
Patent GB-1150379-A (GB)
Title: Chair for Physically Handicapped Persons
Inventor: SHERIDAN VERNON ARTHUR
IPC: A61G5/14
Filed: 1966-12-20
Abstract: 1,150,379. Seats. V. A. SHERIDAN. 27 Nov., 1967 [20 Dec., 1966], No. 56883/66. Heading A4J. In an invalid chair, which assists the occupant to rise to the standing position, a seat part of box construction includes padded arm-rests 10 along the tops of its side walls 7 and is movably carried on crossed links 11, 12. Reversing switch 36 energizes electric motor 31, having a screw-threaded shaft 28, 32 operating the links 11, 12 through nut 27. In another form, a bellows (39, Fig. 4, not shown) is arranged to lift the seat part and is inflated from a source of compressed air controlled by a valve (40). A hand or motor driven air pump may alternatively be used for the bellows.
Patent GB-1368151-A (GB)
Title: Constructional toys
IPC: A63H33/08
Filed: 1971-12-13
Abstract: 1368151 Ornamenting furniture and flower vases H O ABRELL 13 Dec 1971 57812/71 Heading A4U [Also in Divisions A3 A6 and B6] A toy comprises a rectangular frame 1 of flexible plastics having cross-bars 2 with two pegs 5 and two sockets 6 arranged as shown, so that the frame can be connected to adjacent like frames by inter-connecting their pegs and sockets. Two frames 1 may be connected at their ends, Fig.5 (not shown) with the two joined corners of one above and below, respectively, the joined corners of the other, as allowed by the flexibility of the plastics. Alternatively, two frames 1 may be connected side-by-side Fig.6 (not shown) or seven frames 1 may be joined at one corner only to each adjacent frame to make a closed ring Fig. 7 (not shown). A number of the frames may be assembled to make a picture, model, artificial jewellery or decoration for an object such as a flower pot, vase or other display container.
Patent GB-1205608-A (GB)
Title: Improvements in methods of and apparatus for freezing meat and fish
IPC: A23B4/06
Filed: 1967-12-27
Abstract: 1,205,608. Freezing foodstuffs. ALFA LAVAL BERGEDORFER EISENWERK G.m.b.H. 27 Dec., 1967 [30 Dec., 1966], No. 58612/67. Heading F4H. Air or unfrozen liquid trapped between the material to be frozen and the surfaces of the movable plates 1 in a plate freezer is expelled to atmosphere via a system of conduits provided by interconnected channel members 7, 8 contacting the plate surfaces, the horizontal member 8 having apertures 11. The frame made up by members 7, 8 is lifted upwardly, so as to sweep the entire surface of the material, while pressure is applied to the material by plates 12. A hollow U-shaped member 3 is provided between each pair of freezing plates and sealing strips 4 are provided between member 3 and the plates 1, the strips having spaces 5 therebetween to allow the escape of air or liquid trapped between the material and member 3. The apparatus is used to freeze meat or fish which may or may not be packaged before freezing.
Patent GB-1415878-A (GB)
Title: Arrangement for limitting the
IPC: B62D5/06
Filed: 1972-12-21
Abstract: 1415878 Power-assisted steering mechanism K-H THOMAS [trading as LANGEN & CO] 21 Dec 1972 [23 Dec 1971] 59162/72 Heading B7H In an arrangement for limiting the manual steering effort in a power-assisted steering system including a control piston 9 exercising two-edge control over the supply of pressure fluid from a pump 1 to one chamber 27 of a servo-motor 22, the control piston 9 has a reaction face f subjected to the pressure in the servomotor chamber 26 directly connected to the pump 1 and acts through a tappet 11 on an actuating lever 13 pivotally displaceable relative to housing 6, and a reaction piston 10 having a reaction face f 1  subjected to the pressure in the chamber 27 acts on the lever 13 through a tappet 12 and a compression spring 30, movement of the reaction piston 10 in each direction being limited by a stop-ring 33 and end wall 34 so that when the pressure in the chamber 27 rises above or falls below respective prescribed limits the force transmitted to the lever 13 through the tappet 12 remains constant at the value determined by the corresponding compression of the spring 31. The required manual steering effort thus remains substantially constant when it has risen to a predetermined value in either direction. The housing 6 and lever 13 form respective parts of a linkage connecting a steering wheel to steerable road wheels. The areas of the faces F, F 1  of the servomotor piston 25 disposed in the chamber 26, 27 are in the ratio 1 : 2 and the areas of the reaction faces f,f 1  are in the same proportion. The faces of the servomotor piston may alternatively have equal areas, fluid being supplied to one chamber at a reduced pressure through a pressure changing device. In other embodiments, the reaction piston and control piston are coaxially arranged with a compression spring between them, a leaf-spring or tension bar spring replaces the coil spring shown, and the reaction piston acts through a tappet on a lever which acts on the actuating lever through a spring.
Patent GB-1324880-A (GB)
Title: High speed electric switching device
IPC: H02H3/02
Filed: 1970-12-15
Abstract: 1324880 Electromagnetic switches ALLMANNA SVENSKA ELEKTRISKA AB 15 Dec 1970 [16 Dec 1969] 59468/70 Heading H1N [Also in Division H2] A high speed D.C. switching device comprises a movable contact 2 biased in the opening direction by a spring 6, but normally held closed by a holding magnet 4 which has a permanent magnet to provide the holding force and a releasing coil 5 connected to an energy accumulator, e.g. a capacitor 7, via an electronic switching member, e.g. a thyristor 8, which is controlled by means 10 responsive to the magnitude of the current in a circuit 1 reaching a predetermined level and/or means 9 responsive to the rate of rise of the current. The means 9 is a current transformer having a core which does not saturate within its desired range of operation. The means 10 comprises an iron core arranged around the circuit conductor 1 and having an air gap with one or more reed relay units in the vicinity of the gap. Figs. 2 and 3 (not shown) illustrate circuit arrangements for the control device 12.
Patent GB-1366937-A (GB)
Title: Monitoring behaviour druing sleep
IPC: G06F17/00
Filed: 1971-12-23
Abstract: 1366937 Monitoring sleep SHIONOGI & CO Ltd 23 Dec 1971 [29 Dec 1970] 60116/71 Heading G4H Amplitude significant signals representative of electroencephalograms (EEG), movement of the eyes (EM) and electromyograms (EMG) from electrodes fastened to a sleeper are converted to frequency significant pulse trains, the sleeping period being divided into intervals and the number of pulses in each train produced during each interval being counted and recorded. In Figs. 5a and 5b a clock counter 801 provides clock pulses at minute intervals to drive a further counter 805, whose output is compared with a preselectable counter 807 whereby a train of pulses at selectable intervals from 1 to 10 minutes are produced from the coincidence gate 806. Between one such timing pulse and the next the pulse trains representative of the EEG, EM and EMG signals inputted at terminals Ia, Ib and Ic are counted in counters 901a, 901b and 901c. At the occurrence of the next timing pulse from coincidence gate 806, via a one-shot circuit 809, the counter contents are transferred to buffer stores 907a, 907b and 907c and the counters reset via delay 905. A first pulse is added to each of the counters via delay 906, so the counters will at least register a count of 1 if there are no EEG, EM or EMG pulses in the next counting interval. The contents of each buffer are presented in turn to a comparator coincidence gate 909 by the gate control signal generator which also opens the corresponding gates 922, 923 and 924 in turn. A counter 914 is clocked on by pulses which are fed out via that one of gates 922-924 opened at that time until a comparison is achieved, the coincidence gate then providing a pulse via the one-shot circuit 915 to clock on the gate control signal generator. The sequence of pulses from gates 922-924 are converted to sequences of A.C. pulses, the frequency of the A.C. identifying the EEG, EM and EMG signals, which are magnetically recorded or converted to amplitude significant signals for recording by a pin recorder. An operator may also listen-in to the trains of A.C. pulses as they are recorded.
Patent GB-1223789-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C1/10
Filed: 1969-12-15
Abstract: 1,223,789. Container ship cranes; spreaders for handling containers. BROWN BOVERI & CO. Ltd. 15 Dec., 1969 [16 Dec., 1968], No. 61050/69. Headings B8B and B8H. A container ship crane comprises two parallel jib structures 2, each composed of a pair of parallel arms hinged to rock about a parallel axis at their lower ends (not shown) and pivotally connected at their upper ends to opposite ends of a horizontal, rectangular cross-beam assembly 1. Two crabs 3 are mounted on the assembly 1 and are movable in the fore-and-aft direction as is the crane along a track provided on the ship. Each crab carries a pair of spaced pulleys 4 around which a carrier rope 5 runs and is attached to a corner of a horizontal pick-up frame 6 adjustable in length to suit a particular container 7 to be lifted. In the embodiment illustrated in Fig. 2 (not shown, the frame 6 may be turned slightly with respect to the assembly 1 since an axle (41) carrying the two spaced pulleys 4 on one of the crabs 3 can be displaced axially. Complete rotation is provided in a third embodiment, Fig. 3 (not shown), the assembly 1 being suspended from a turntable ring (11) carried by a frame support (12) pivotally connected between the jib structures 2.
Patent GB-2002216-A (GB)
Title: Production of molasses pulp from sugar beet for use as animal food
IPC: A23K10/33
Filed: 1978-07-07
Abstract: A process for producing molasses pulp having a higher content of dry substance (which assists preservation) than is achieved using known methods, which process reduces the energy used for drying comprises pressing beet slices after sugar has been extracted by aqueous extraction, adding high dry substance content (e.g. over 50%) molasses to the pressed slices and then pressing the slices again. The molasses absorbs some of the liquid from the slices and becomes diluted. This diluted molasses then has its dry substance content increased either by multistage evaporation or by mixing with molasses which has been centrifuged, and is mixed with the pressed slices. This process may be repeated one or more times. The pulp may have added thereto inorganic substances for improving pressability, acidic molasses for preservation, or single cell protein or urea to improve food value.
Patent GB-2002967-A (GB)
Title: Integrated circuit assembly
IPC: H01L23/29
Filed: 1978-07-18
Abstract: An integrated circuit assembly comprises a circuit board one surface of which is provided with a circuit by an etching process. An integrated circuit chip 2 is disposed adjacent to this surface and is mounted between through- holes 1a, 1b in the circuit board 1. Wires 3 are wire bonded to electrodes of the integrated circuit chip 2 and the said circuit to effect electrical connections therebetween. The through-holes 1a, 1b are employed as gates in a transfer moulding process in which there is formed a moulded member 4 between which and the circuit board 1 the integrated circuit chip 2 is encapsulated. Portions of the moulded member 4 extend through the through-holes 1a, 1b and have enlarged parts 4a, 4b which overlie the opposite surface of the circuit board 1 to prevent removal of the moulded members 4 from the circuit board 1. <IMAGE>
Patent GB-2002828-A (GB)
Title: Improvements in tufting machines
IPC: D05C15/32
Filed: 1978-07-28
Abstract: A tufting machine, in which loops of yarn of different pile height are formed by feeding yarn to the needles of the machine by pairs of feed rolls 25, 26 driven to variable extents by individual stepping motors 29 under control of a patterning mechanism 31. <IMAGE>
Patent GB-2001898-A (GB)
Title: Screw plasticising machine for processing raw material fed in continuous strip form
IPC: B29C48/60
Filed: 1978-08-03
Abstract: The plasticising screw 12 e.g. of an injection moulding machine, has a helical thread whose profile is broad and flat-topped over most of the screw, but narrower and sharper, i.e. triangular, in the inlet zone Ia to aid cutting-in of the strip of material and reduce friction thereby. Friction in the zone Ia may be reduced further, by the height of the crest fluctuating along its length, and the thread being cut deeper. <IMAGE>
Patent GB-2003757-A (GB)
Title: Centrifuge
IPC: B04B11/08
Filed: 1978-09-05
Abstract: A centrifuge for separating impurities from a liquid includes a rotational chamber 10, and a discharge system within the chamber for discharging sludge from the chamber. The discharge system comprises an internal shaft 16 rotatable both independently of and together with the chamber 10, and a plurality of segmental discs 18 projecting from the shaft and axially spaced and angularly displaced round the shaft from one another. Each disc carries, at its free end, a plough- shaped wedge 19 extending closely adjacent the inner wall of the chamber to remove deposited sludge therefrom when rotating independently of the chamber. <IMAGE>
Patent GB-2032673-A (GB)
Title: Improvements in or relating to sound simulation system
IPC: G09B9/00
Filed: 1978-10-24
Abstract: In order to generate sounds simulating those sensed in the central operating room of a thermal power plant in operation of a simulated plant, the actual background noise is preliminarily recorded on a magnetic record tape (4) with a constant amplitude. The constant amplitude of the reproduced background noise signal is controlled by an amplitude control device (5) in response to each of digital control signals calculated by a digital computer (2) and applied to the device on a real time basis. The background noise signal controlled in amplitude is converted in a sound simulator (6) to sounds simulating those resulting from the opening of a similater boiler's safety valve, the asynchronous connection of a simulated generator to a simulated electric system etc. upon their occurrence. <IMAGE>
Patent GB-2012691-A (GB)
Title: Hybrid flywheel/compressed-fluid propulsion system for nonstationary applications
IPC: B60K6/10
Filed: 1979-01-09
Abstract: The adaptation of a compressed-fluid (such as compressed-air) powered turbine in conjunction with the use of a flywheel as a hybrid propulsion system for nonstationary applications, such as vehicle drive, is shown and its practicality demonstrated. This propulsion system requires a nonpolluting fluid, such as air, and a source of mechanical or electrical energy to compress said fluid and energize said flywheel, both of which act as energy storage media. An expander/compressor unit, such as a turbine, is used for converting the stored energy of said compressed-fluid into shaft power by expanding said fluid, and recovering the braking energy during vehicle deceleration by compressing and storing the atmospheric air (if air is used). Said flywheel is used not only for providing peak powers necessary for vehicle acceleration but also for recovering the braking energy during vehicle deceleration and refilling said compressed-fluid in an emergency. The propulsion system can use the unlimited supply of air as the primary energy-storage medium and said flywheel as the secondary energy-storage medium. The propulsion system is not only regenerative but also quick-recharging; it, therefore, has high energy-efficiencies and broad applications.
Patent GB-2012922-A (GB)
Title: Control Valve with Spring Return
IPC: F16K17/04
Filed: 1979-01-19
Abstract: The valve comprises a valve housing (4) having connections (1), (2) (3) for control supply and discharge medium, annular channels (5, 6) at the connections (2) and (3), and a control slide valve (7), having control edges (8, 9) respectively associated with the channels. The position of the slide valve is determined by the control pressure obtaining on one side and by a helical primary spring (10) on the other side. A secondary helical spring (11) is concentrically received within the primary spring and is held captive within a sleeve (12). The length of spring (10) is significantly greater than the secondary spring. The pretension of the secondary spring is adjustable within the sleeve by an abutment (13), the axial position of which can be varied by screwthreads before or after assembly of the valve. <IMAGE>
Patent GB-2016490-A (GB)
Title: Composite sheet material comprising a fibrous sheet and a polyurethane elastomer
IPC: C08G18/72
Filed: 1979-01-31
Abstract: A composite sheet material comprises a fibrous sheet which is impregnated and/or coated with a polyurethane elastomer which comprises a reaction product of (A) a polymeric diol having a molecular weight of about 800-5000, (B) a mixture of organic diisocyanates wherein about 2-70 mol % is composed of aliphatic diisocyanate (said aliphatic diisocyanate having no direct bond between an aromatic ring and an isocyanate group) and wherein the balance 98-30 mol % is composed of aromatic diisocyanate which includes a direct bond between an aromatic ring and an isocyanate group, and (C) a chain extender comprising hydrazine and/or a derivative having the formula NH2NHR and another chain extender having two functional groups constituting amino and/or hydroxyl groups, and wherein about 30-80% of the carbon atoms which are bonded to nitrogen atoms constituting the ureylene and/or urethane bonds of said polyurethane elastomer constitute benzene and/or naphthalene ring skeletons, and wherein about 2-70% of the ureylene bonds of said polyurethane elastomer are formed by the reaction of aliphatic diisocyanate and hydrazine and/or its derivative having the formula NH2NHR.
Patent GB-2047387-A (GB)
Title: Butterfly valve
IPC: F16K1/226
Filed: 1979-04-23
Abstract: A butterfly valve has a throttle 1 which has a plane of symmetry b containing its pivoting axis j. At the two locations h(i) where the seal face a passes through the plane of symmetry, the seal face is of part- spherical shape. These part-spherically shaped portions progressively merge around the circumference of the seal face with frusto-conically shaped portions f, g. When the throttle is pivoted, the conical surfaces are pressed against a valve seat formed by a circular steel ring made of steel. This seat then assumes a more and more elliptical shape finally to adjusting itself entirely to the elliptical median line of the seal face. <IMAGE>
Patent GB-2020460-A (GB)
Title: Electronic multiplying circuits
IPC: G06G7/163
Filed: 1979-04-23
Abstract: A multiplying circuit for an electronic watthour meter comprises a variable- transconductance multiplier of the type comprising two emitter-coupled pairs of transistors Tr1 to Tr4, the collectors of one pair being cross- coupled with the collectors of the other pair. To permit the effective polarity of one of the input signals to the multiplier to be reversed from time to time for drift correction, this input signal is applied to a semiconductor switching circuit Tr5 to Tr8, which applies it alternately to the respective bases of a further emitter-coupled pair of transistors Tr11, Tr12. The collectors of the transistors of this further pair are connected in series with the coupled emitters of respective ones of the emitter- coupled pairs in the variable- transconductance multiplier. <IMAGE>
Patent GB-2023547-A (GB)
Title: A Machine for Automatically Controlling the Quality on Freshly Printed Banknotes and Valuable Documents
IPC: G07D11/00
Filed: 1979-05-25
Abstract: The machine comprises a control head pair 4, 6, e.g. photoelectric heads, being effective to examine single sheets (bank notes) at high speed e.g. held on a suction smoother cylinders 3, 5. The head pair scans the front and rear surfaces of the sheet along a plurality of paths. The signal is compared with a signal representing a sample or reference sheet. By this comparison any defect, e.g. in ink tones, generates a reject signal to actuate a downstream printing mechanism 7 which impresses a suitable cancellation mark on the defective note. Further devices 8 detect faults in the filigree pattern. The sheets are ultimately delivered to box 9, 10 or 11 according to the defects sensed. <IMAGE>
Patent GB-2021726-A (GB)
Title: Protective devices for stamping machines and the like
IPC: F16P3/04
Filed: 1979-05-29
Abstract: A protective device for a stamping machine, having a movable screen part (2) provided with profiled rollers (9) which engage with double prismatic guides (10). The screen part (2) has racks (3) driven by pinions (4, 4') on a shaft (7). One of the pinions (4) is driven by an actuating element (5), for example a further rack, which is driven by a working cylinder. <IMAGE>
Patent GB-2026720-A (GB)
Title: Electronic Flash Device
IPC: G03B15/05
Filed: 1979-07-10
Abstract: An electronic flash device comprises a casing (1, 2, 3), a manually pivotable reflector (6) in the casing (1, 2, 3) pivotable abouts its focal axis (A) and divided into at least two parts (6'', 6', 6''') transverse to its axis (A) without the provision of dividing walls, a linear light source (5) lying on the focal axis (A) of the reflector (6), at least one part (6', 6''') being selectively pivotable about its focal axis (A) relative to the other part (6'') such that the light from the light source (5) can be transmitted in two different directions separately or at the same time, electrical operating equipment for the light source (5) in the casing and mechanical and electrical connection means (8) for connection to a camera. The device provides direct, indirect, or direct and indirect illumination simultaneously. <IMAGE>